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Finding the Fourth Proportional to 703,518.01, 970,850.81 and 381,228.12

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Solution

The fourth proportional to 703,518.01, 970,850.81 and 381,228.12 is: 526,092.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,518.01 : 970,850.81 = 381,228.12 : x
  2. Step 2: Convert to fraction form
    703,518.01/970,850.81 = 381,228.12/x
  3. Step 3: Cross multiply
    703,518.01x = 970,850.81 × 381,228.12
  4. Step 4: Simplify right side
    703,518.01x = 370,115,630,049.85
  5. Step 5: Solve for x
    x = 370,115,630,049.85/703,518.01
  6. Step 6: Final answer
    x = 526,092.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.